Lamp



C. REBL -May 31,1932.

LAMP

Filed July 18, 1930 INVENTOR CarLRe'bL ATTORN EYS Patented May 31, 1932PATENT OFFICE V ()"ARL REBL, OF BROOKLYN, YORK LAM]? Application filedJuly 18, 1930. Serial No. 468,902.

The invention relates, to lamps and has for an object to provide a lamphaving a bulb for direct lighting and another bulb which serves to lighta support for the first mentioned bulb.

The invention has for another object to provide means for connecting thebulbs in series.

Still another object of the invention is to provide one or more bulbsdisposed in a translucent support, each bulb having a filamentconnecting opposite terminals of a bulb for lighting a translucentsupport by the said bulbs, the filaments and a conductor in thetranslucent support forming parts of a circuit which serves to light abulb carried by the translucent support.

Additional objects of the invention will appear in the followingspecification in which the preferred form of the invention is described.

In the drawings similar reference characters refer to similar parts inall the views, of which Figure 1 is a perspective view illustrating theinvention, and

Figure 2 is an enlarged sectional elevation of the constructionillustrated in Figure 1, but with the base removed.

By referring to the drawings it will be seen that the base 5 has asocket 6 for receiving the outer conducting threaded terminal 7 whichextends from the lower end of the hollow or cylindrical translucentmember 8. This outer threaded member 7 supports a central conductingmember 9 which is insulated from the outer conducting threaded member 7by means of insulation 10. EX- tending from the outer conductingthreaded member 7 there is a conductor 11 which is disposed in thecylindrical translucent member 8 and which extends to an innerconducting threaded member 12 at the upper end of the cylindricaltranslucent member 8.

Disposed in the cylindrical translucent member 8 there are one or morebulbs 13, each of these bulbs 13 having afilament 14 extending fromopposite ends and leading to contact members 15 so that when the bulbs13 are disposed end to end, as illustrated in contact member 15 at thebottom of the lower bulb engages a contact member 16 commun cating withthe conducting member 9. A coil spring 17 is preferably disposed at thebottom of the cylindrical translucent member 8 for supporting the bottombulb 13, it being possible, however, to push downwardly the bulbs 13against the resiliency of the spring 17 so that the contact member 15 atthe bottom of thelowermost bulb 13 will engage the contact member 16.

The contact member 15 at the top of the upper bulb 13 will normallyengage with a contact 18 which is disposed centrally at the bottomof thebulb 19 and which is insulated from its outer threaded conductingportion 20 which contacts with the inner conducting ghread 12 on thecylindrical translucent mem- As will be readily understood, when theouter conducting member 7 is screwed in the socket 6 in the base 5, andthis socket 6has an outer and a'central conductor which may engage withthe outer conducting portion 7 and the conducting-member 9, a completecircuit will be made through the filaments 14 in the bulbs 13, throughthe filament in the bulb 19, thence through the outer threadedconducting portion 20 to the inner conducting threaded member 12, theconductor 11 to the outer conducting threaded member 7. This will lightone or more of the bulbs13 as well as the bulb 19, but inasmuch as thecylindrical member 8 is translucent and serves as a support for the bulb19, the direct lighting will be furnished by the bulb 19, but the bulbs18 will merely serve to light the cylindrical translucent member 8giving a glow to the support for the bulb 19.

While I have shown the device in Figure 1 with a base member suitablefor a table lamp, it will be understood that the device shown in Figure2 'may be inserted in any standard electrical socket and used as desiredin floor lamps, side lights, ceiling lights,

and all other forms of fixtures which may be disposed horizontally orvertically.

lVhat is claimed is:

1. In a lamp, a hollow translucent member having two contact membersspaced apart at one end, and a conductor connecting one of the Contactmembers with the translucent members other end, a bulb in thetranslucent member, the bulb having a filament connecting its oppositeends, means connecting the filament with the other contact member, asecond bulb having a filament extending beyond the second mentioned endof the translucent member, and means connecting thefilament in thesecond mentioned bulb with the conductor and with the filament in thefirst mentioned bulb.

2. In a lamp, a hollow translucent'member having at one end an outerconducting thread and another conductor, and at its other end an innerconducting thread, a conductor connecting the two conducting threads, abulb with a conductor connecting opposite'ends disposed in thetranslucent member with its conductor engaging the conductor at thefirst mentioned end of the translucent member, and a bulb having aconducting thread engaging the conducting thread at the second mentionedend of the translucent member, the second mentioned bulb having acontact point engaging the conductor on the first mentioned bul 7 thetube and carried thereby, the additional bulb electrically engaging witha contact point on one of the first mentioned bulbs, and a conductorwithin the tube connected with the said additionalbulb and extending tothe other end of the tube.

CARL REBL.

3. In a lamp, a hollow translucent'member bulb extending beyond one endof the translucent member and having. electrical engagement with one ofthe conducting ends, a bulb disposed in thetranslucent member with afilament connecting opposite ends, one of the ends of the filament beingconnected electrically with the first mentioned bulb, and means at theother end of the translucent member for holding the second mentionedbulb in position.

'4. In alamp, a hollow translucent member having at one end an outerconducting thread and another conductor and at its other end an innerconducting thread, a conductor connecting the two conducting threads, abulb having a conducting thread engaging the conducting thread at thesecond mentioned end of the translucent member, the bulb havin g anotherconductor, and a plurality of additional bulbs disposed end to end inthe translucent member and each having opposite contact points and afilament connecting the contact points respectively, certain of thecontact points engaging each other and the other contact points engagingthe conductor on the first mentioned bulb and the conductor at the firstmentioned end of the translucent member.

5. In a lamp, a hollow translucent member having a lamp bulb-receivingcavity between

